HI MArk
going against the crowd slightly here...I like the Shell swirl image , focus is spot ,plenty of detail & I even like the cork mat it's sat on as it contrasts & blends at the same time
The shadow does need lighting slightly......bounce some light in to the front of the shell using some white/silver card, should brighten the underside & lessen the dark shadow just enough
Linked...ovbiously I'm having a blonde moment cos I don't get the connection
I do like the image in an odd kinda way though......good exposure on the chain with no glaring hot spots , plenty of detail in the antler
The bg appears a little patchy on my screen though & I might be tempted to crop the base so the antler comes in to shot from the corner ?